Air quality index [µg/m3]:
excellent ≤ 12
good ≤ 36
lightly polluted ≤ 60
moderately polluted ≤ 84
heavily polluted ≤ 120
severely polluted > 120
PM 2.5
[µg/m3]
PM 10
HOUR OPOLSKA ST. ROOF (BEFORE FILTERS)  AIR SUPPLIED TO OFFICES
150010excellentexcellent21excellent
14008excellentexcellent11excellent
13005excellentexcellent21excellent
12007excellentexcellent21excellent
110010excellentexcellent21excellent
10009excellentexcellent21excellent
090012excellentexcellent31excellent
080025goodexcellent41excellent
070029goodexcellent51excellent
060030goodexcellent41excellent
050034goodexcellent41excellent
040033goodexcellent51excellent
030033goodexcellent51excellent
020039lightly pollutedexcellent51excellent
010046lightly pollutedexcellent51excellent
000049lightly pollutedexcellent51excellent
230055lightly pollutedexcellent51excellent
220052lightly pollutedexcellent51excellent
210037lightly pollutedexcellent41excellent
200022goodexcellent41excellent
190021goodexcellent41excellent
180014goodexcellent31excellent
170013goodexcellent21excellent
160011excellentexcellent21excellent